CN215638653U - System for be used for anhydrous sodium sulphate dry - Google Patents
System for be used for anhydrous sodium sulphate dry Download PDFInfo
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- CN215638653U CN215638653U CN202121795267.6U CN202121795267U CN215638653U CN 215638653 U CN215638653 U CN 215638653U CN 202121795267 U CN202121795267 U CN 202121795267U CN 215638653 U CN215638653 U CN 215638653U
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Abstract
The utility model relates to a system for drying anhydrous sodium sulphate, which comprises a feeding device, an air-heat mixed flow heating device, an air-heat mixed flow cooling device, steam supply equipment, cooling water supply equipment, gas supply equipment and a dust removal device, wherein the feeding device comprises a feeding device, a steam-heat mixed flow heating device, a steam-heat mixed flow cooling device, a cooling water supply device, a gas supply device and a dust removal device; the feeding device, the gas-heat mixed flow heating device and the gas-heat mixed flow cooling device are sequentially connected in series from top to bottom; the steam supply device is connected with a medium inlet of the air-heat mixed flow heating device, the cooling water supply device is connected with a medium inlet of the air-heat mixed flow heating device, and the gas supply device is connected with a gas inlet of the air-heat mixed flow heating device and an air-heat mixed flow cooling device; the air outlets of the air-heat mixed flow heating device and the air-heat mixed flow cooling device are connected with a dust removal device. The utility model adopts the steam to exchange heat with the material, and then the heat exchanger heats the air by using the heat of the steam, thereby saving the energy consumption and reducing the cost; the utility model simplifies the structure and is convenient to maintain.
Description
Technical Field
The utility model relates to the technical field of anhydrous sodium sulphate production, in particular to a system for drying anhydrous sodium sulphate.
Background
Sodium sulfate is a salt formed by combining sulfate radical and sodium ion, and has a chemical formula of Na2SO4, and the solution of sodium sulfate is neutral, and is dissolved in glycerol but not in ethanol. Inorganic compounds, high purity, finely divided anhydrates are known as glaubers salt.
Anhydrous sodium sulphate, white, odorless and bitter crystal or powder, is easily soluble in water and has hygroscopicity. The appearance is colorless, transparent, large crystal or granular small crystal.
At present, drying is a necessary process for producing anhydrous sodium sulphate. At present, flash evaporation is mostly adopted in a drying process, and in the flash evaporation process, connected equipment is more, inconvenient to overhaul and high in energy consumption. In addition, a large amount of hot air is needed for flash evaporation, and the heat consumption for heating air is large.
SUMMERY OF THE UTILITY MODEL
The present application provides a system for anhydrous sodium sulphate drying to solve the above technical problems.
The application is realized by the following technical scheme:
the system for drying the anhydrous sodium sulphate comprises a feeding device, an air-heat mixed flow heating device, an air-heat mixed flow cooling device, steam supply equipment, cooling water supply equipment, gas supply equipment and a dust removal device;
the feeding device is positioned above the air-heat mixed flow heating device, the air-heat mixed flow heating device is positioned above the air-heat mixed flow cooling device, and the feeding device, the air-heat mixed flow heating device and the air-heat mixed flow cooling device are sequentially connected in series;
the steam supply device is connected with a medium inlet of the gas-heat mixed flow heating device, the cooling water supply device is connected with a medium inlet of the gas-heat mixed flow heating device,
the gas supply equipment is connected with the gas inlet of the gas-heat mixed flow heating device and the gas-heat mixed flow cooling device; the air outlets of the air-heat mixed flow heating device and the air-heat mixed flow cooling device are connected with a dust removal device.
Further, the system for drying the anhydrous sodium sulphate also comprises a heat exchanger, the gas-heat mixed flow heating device is connected with gas supply equipment through the heat exchanger, and the heat exchanger is connected with steam supply equipment; or the gas-heat mixed flow heating device is connected with the gas supply equipment through a heat exchanger, and the heat exchanger is connected with a medium outlet of the gas-heat mixed flow heating device.
Further, the dust removal device is connected with a tail gas treatment device.
Further, the gas-heat mixed flow heating device comprises two heat exchange tanks, the gas-heat mixed flow cooling device comprises one heat exchange tank, and the three heat exchange tanks are connected in series up and down; or the gas-heat mixed flow heating device comprises three heat exchange tanks, the gas-heat mixed flow cooling device comprises one heat exchange tank, and the four heat exchange tanks are connected in series up and down.
Furthermore, a vertical material channel is arranged in the heat exchange tank, a plurality of heat exchange plates are arranged in the material channel of the heat exchange tank in parallel at intervals, the heat exchange plates are vertically arranged, and an interval allowing materials to pass through is formed between each heat exchange plate;
the heat exchange tank is provided with an air inlet and an air outlet which are communicated with the material channel;
a heat exchange medium channel is arranged in each heat exchange plate, and a medium inlet and a medium outlet of each heat exchange medium channel are positioned outside the heat exchange tank.
Compared with the prior art, the method has the following beneficial effects:
the utility model adopts the heat exchange between the steam and the material, and can reduce the energy consumption in the anhydrous sodium sulphate drying process compared with the flash evaporation;
2, the air is heated by the heat exchanger through the steam heat, so that the energy consumption can be saved, and the cost can be reduced;
3, the utility model simplifies the structure and is convenient to maintain.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model.
FIG. 1 is a schematic structural diagram of the first embodiment;
FIG. 2 is a schematic structural view of a heat exchange tank according to a first embodiment;
FIG. 3 is a schematic structural view of a heat exchange tank according to a second embodiment;
FIG. 4 is a schematic structural diagram of the third embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments. It is to be understood that the described embodiments are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict. It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used only for convenience in describing and simplifying the present invention, but do not indicate or imply that the devices or elements that are referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1, the system for drying anhydrous sodium sulphate disclosed by the embodiment comprises a feeding device 1, a gas-heat mixed flow heating device 2, a gas-heat mixed flow cooling device 3, a heat exchanger 4, a steam supply device 5, a cooling water supply device 6, a gas supply device 7 and a dust removal device 9.
The gas-heat mixed flow heating device 2 is arranged above the gas-heat mixed flow cooling device 3, the top of the gas-heat mixed flow heating device 2 and the gas-heat mixed flow cooling device 3 is provided with a feeding hole, and the bottom of the gas-heat mixed flow heating device is provided with a discharging hole.
The feeding device 1 is positioned above the gas-heat mixed flow heating device 2, the discharge port of the feeding device 1 is connected with the feed port of the gas-heat mixed flow heating device 2, and the discharge port of the gas-heat mixed flow heating device 2 is connected with the feed port of the gas-heat mixed flow cooling device 3.
The steam supply device 5 is connected with a medium inlet of the gas-heat mixed flow heating device 2, and a gas inlet of the gas-heat mixed flow heating device 2 is connected with the gas supply device 7 through the heat exchanger 4; the heat exchanger 4 is connected to a steam supply device 5.
The cooling water supply device 6 is connected with a medium inlet of the gas-heat mixed flow heating device 2, and a gas inlet of the gas-heat mixed flow heating device 2 is connected with a gas supply device 7.
The gas outlets of the gas-heat mixed flow heating device 2 and the gas-heat mixed flow cooling device 3 are connected with a dust removal device 9, and the dust removal device 9 is connected with a tail gas treatment device 10 through an induced draft fan 8.
The gas supply device 7 in this embodiment comprises a fan.
In this embodiment, the gas-heat mixed flow heating device 2 comprises two heat exchange tanks 100, the gas-heat mixed flow cooling device 3 comprises one heat exchange tank 100, and the three heat exchange tanks 100 are connected in series.
As shown in FIG. 2, a vertical material channel is formed in the heat exchange tank 100, a feed inlet 101 is formed at the top of the heat exchange tank 100, and a discharge outlet 102 is formed at the bottom of the heat exchange tank 100. The discharge port 102 of the upper heat exchange tank 100 is connected with the feed port 101 of the lower heat exchange tank 100, so that a structure in which three heat exchange tanks 100 are connected in series is formed. A plurality of heat exchange plates 103 are arranged in the material channel of the heat exchange tank 100 in parallel at intervals through a fixing frame, the heat exchange plates 103 are vertically arranged, and an interval allowing materials to pass is formed between the heat exchange plates 103 and the heat exchange plates 103.
A heat exchange medium channel is arranged in each heat exchange plate 103. The heat exchange medium channel has a medium inlet 105 and a medium outlet 106, the medium inlet 105 and the medium outlet 106 being located outside the heat exchange tank 100.
The heat exchange tank 100 is also provided with an air inlet 107 and an air outlet 108, and the air inlet 107 and the air outlet 108 are both communicated with the material channel. In order to prevent the material from being discharged from the material channel from the air inlet 107 and the air outlet 108, filter screens are arranged at the air inlet 107 and the air outlet 108.
The number of the air inlets 107 and the air outlets 108 is not limited.
The working principle of the embodiment is as follows:
anhydrous sodium sulphate: the anhydrous sodium sulphate containing water is uniformly fed into the gas-heat mixed flow heating device 2 by the feeding device 1, the material in the gas-heat mixed flow heating device 2 falls downwards under the action of self weight, is heated and dried in the falling process, then falls into the gas-heat mixed flow cooling device 3 under the self weight, the material falling into the gas-heat mixed flow cooling device 3 continuously falls under the action of self weight, is cooled and dried in the falling process, is discharged through a material outlet at the bottom, and is fed into a packaging workshop for packaging;
in the process, part of fine anhydrous sodium sulphate crystals are pumped out of the air heat mixed flow heating device 2 and the air heat mixed flow cooling device 3 through the air outlet, powder carried out by the air flow is intercepted when passing through the dust removal device 9, and the fine anhydrous sodium sulphate crystals can be recovered and dried again after being accumulated for a period of time.
Steam: most of steam enters the heat exchange plates 103 in the two heat exchange tanks 100 of the gas-heat mixed flow heating device 2 respectively, and is discharged or recycled after exchanging heat with materials;
the rest steam enters the heater 4 to exchange heat with the supply gas of the gas supply device 7 and then becomes condensate to be discharged or recycled.
Gas: a part of gas is heated to 120 plus DEG C by a heater 4, then divided into two groups and respectively enters two heat exchange tanks 100 of a gas-heat mixed flow heating device 2 to take away moisture in materials, and discharged gas is sent to a tail gas treatment device 10 for treatment after flowing through a dust removal device 9;
part of the gas directly enters the gas-heat mixed flow cooling device 3 without being heated, is pumped out from the gas-heat mixed flow cooling device 3 by a suction fan 9, and enters the tail gas treatment device 10 after being dedusted.
Circulating water: the circulating water directly enters the gas-heat mixed flow cooling device 3, exchanges heat with the materials through the heat exchange plate and then flows out of the tail gas treatment device 10, and then returns to the circulating water pool.
Example two
The difference between this embodiment and the first embodiment is: as shown in fig. 3, in the present embodiment, a material vibration device 200 is installed at the inlet and the outlet of the heat exchange tank 100. The material vibrating device 200 is driven by a vibrating motor.
EXAMPLE III
The difference between this embodiment and the first embodiment is: as shown in fig. 4, the heat exchanger 4 is changed to be connected with the medium outlet of the air-heat mixed flow heating device 2 in the embodiment.
As a preferred scheme, the gas-heat mixed flow heating device 2 comprises three heat exchange tanks 100.
The gas supply device 7 in this embodiment is an air compressor.
The steam flow in this example is: the steam enters the three heat exchange tanks 100 of the gas-heat mixed flow heating device 2 respectively, still has residual heat after exchanging heat with the materials, then enters the heater 4 to exchange heat with compressed air, and then becomes condensate to be discharged or recycled.
The above embodiments are provided to explain the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A system for anhydrous sodium sulphate is dry, its characterized in that: comprises a feeding device, an air-heat mixed flow heating device, an air-heat mixed flow cooling device, a steam supply device, a cooling water supply device, an air supply device and a dust removal device;
the feeding device is positioned above the air-heat mixed flow heating device, the air-heat mixed flow heating device is positioned above the air-heat mixed flow cooling device, and the feeding device, the air-heat mixed flow heating device and the air-heat mixed flow cooling device are sequentially connected in series;
the steam supply device is connected with a medium inlet of the gas-heat mixed flow heating device, the cooling water supply device is connected with a medium inlet of the gas-heat mixed flow heating device,
the gas supply equipment is connected with the gas inlet of the gas-heat mixed flow heating device and the gas-heat mixed flow cooling device; the air outlets of the air-heat mixed flow heating device and the air-heat mixed flow cooling device are connected with a dust removal device.
2. The system for anhydrous sodium sulfate drying according to claim 1, characterized in that: the gas-heat mixed flow heating device is connected with gas supply equipment through the heat exchanger, and the heat exchanger is connected with steam supply equipment.
3. The system for anhydrous sodium sulfate drying according to claim 1, characterized in that: the gas-heat mixed flow heating device is connected with gas supply equipment through the heat exchanger, and the heat exchanger is connected with a medium outlet of the gas-heat mixed flow heating device.
4. A system for anhydrous sodium sulphate drying according to claim 1, 2 or 3 wherein: the gas supply device is a fan or an air compressor.
5. The system for anhydrous sodium sulfate drying according to claim 1, characterized in that: the dust removal device is connected with the tail gas treatment device.
6. The system for anhydrous sodium sulfate drying according to claim 1, characterized in that: the gas-heat mixed flow heating device comprises two heat exchange tanks, the gas-heat mixed flow cooling device comprises one heat exchange tank, and the three heat exchange tanks are connected in series from top to bottom.
7. The system for anhydrous sodium sulfate drying according to claim 1, characterized in that: the gas-heat mixed flow heating device comprises three heat exchange tanks, the gas-heat mixed flow cooling device comprises one heat exchange tank, and the four heat exchange tanks are connected in series up and down.
8. A system for anhydrous sodium sulphate drying according to claim 6 or 7 wherein: a vertical material channel is arranged in the heat exchange tank, a plurality of heat exchange plates are arranged in the material channel of the heat exchange tank in parallel at intervals, the heat exchange plates are vertically arranged, and an interval allowing materials to pass is formed between each heat exchange plate;
the heat exchange tank is provided with an air inlet and an air outlet which are communicated with the material channel;
a heat exchange medium channel is arranged in each heat exchange plate, and a medium inlet and a medium outlet of each heat exchange medium channel are positioned outside the heat exchange tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121795267.6U CN215638653U (en) | 2021-08-03 | 2021-08-03 | System for be used for anhydrous sodium sulphate dry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121795267.6U CN215638653U (en) | 2021-08-03 | 2021-08-03 | System for be used for anhydrous sodium sulphate dry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215638653U true CN215638653U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121795267.6U Active CN215638653U (en) | 2021-08-03 | 2021-08-03 | System for be used for anhydrous sodium sulphate dry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215638653U (en) |
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2021
- 2021-08-03 CN CN202121795267.6U patent/CN215638653U/en active Active
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